I hope there is someone proposing to format en reinstall Windows like their forums always suggest for minor issues.
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Someone set a datacenter on fire.

The app server isn't running the SMTP server, it can't connect to one. We would also be happy for them to run their own SMTP server and point it at that instead if they wish.
My conspiracy theory was this this was a deliberate attempt to force users to actually start using Teams instead of email.
The problem with this ploy is that even email that doesn’t work is more useful than Teams.
The problem with SMTP is that it is too simple. There is a complete lack of security, so different implementations have had layers added on top to harden them, which adds to the complexity. Not all layers are standardised or compatible, which means that what should be relatively simple becomes an untenable mess.
It isn’t something that can be proprietarised easily so companies need to also add their own proprietary layers in order to monetise their product, which adds more untenable.
If your “senior network engineer” is more concerned about your SMTP server becoming a SPAM relay than your product being usable for its intended purpose, which is why it is still down.
They should press F1 and follow the help instructions
Depending on your job it could mean a pretty light workload.
SMTP is about as simple as it can get
Tell that to the "senior network engineer" I am trying to get to unblock SMTP for the server running our software on their network. Its coming up to 2 weeks now.
Haha, I got to work and its still broken. I read about this last night and though damn why must it happen after I finished work.
Its STILL down! At least they can still claim 99% uptime I guess.
Just rollback to the last known good backups...
They do have backups, don't they?!
Rumors are circulating that physical hardware is the issue and thats why they cant bring them back. They either bricked their servers so they wont boot or something catastrophic happened that damaged the hardware
Have they try turning it off and on again?

I would assume they've broken their DNS servers or some other similarly low-level infrastructure to the point where something just isn't resolving behind the scenes anymore.
I got a text message from Microsoft at 2am
Linksys sure did make pretty routers. Those WRT54Gs were iconic
Seeing Teams online was a let down for sure. I'm not sure how the company would communicate without it. Would have been hilarious.
Sadly my Teams seems to be working intermittently, and I can access the documents I need to read on SharePoint, so not a complete write off. Still, no emails, and especially no Jira notifications is a blessing.
5 emails instead of 100+, this last weekday is smiling upon me.
Microsoft Outage - heck yeah, that's their new flagship product!
First step is to reinstall windows on an clean, formatted SSD. Obviously
"with 7 years experience"
I woke up to alert messages from my company. Logging in now to see how little work I have to do this morning 🤗
Clearly a fake.
Didn't even recommend »sfc /scannow«.
"Hello, I'm a verified microsoft support agent, here to help you with your request! [3 paragraphs of boilerplate] Have you tried turning it off and on again? If you think this was helpful, don't forget to rate me 5 stars!"